Compare Merlin AI and Disciplined: Which App is the Best?
Merlin AI combines ChatGPT, Grok AI, DeepSeek, Gemini, Claude, and Perplexity AI in one powerful app with 70+ AI tools. Enjoy 102 free daily queries and seamless cross-platform integration. | Disciplined is a clean, effective habit tracker that helps you build consistent routines through simple tracking and visual progress monitoring. | |
| Key Features A summary of the most important features offered by each app. |
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| Our Rating Prod Apps's expert review score for each app, based on hands-on testing and research. | 8.3 Winner in this category | 7.6 |
| Total users Total active users across all major browsers: Chrome, Edge, Firefox, and Safari. | 0 | 0 |
| Total ratings Total number of user ratings received across all supported browsers. | 0 | 0 |
| Average rating Average user rating across all browsers, calculated from available store ratings. | — ⭐ | — ⭐ |
| Entry Level Price The minimum price required to start using the app. "Free" means a free tier is available. | Free | Free |
| Android User rating and stats for the app on Android browser. |  Downloads | Downloads |
| iOS User rating and stats for the app on iOS browser. |  | |
| Features Prod Apps's expert score for the 'Features' aspect of each app. | 9.0 Merlin AI has everything you'd want in an AI assistant. It brings together seven different AI models - ChatGPT, Grok AI, DeepSeek, Gemini, Claude, and Perplexity AI - all in one place. This means you don't need separate subscriptions for each one. We really liked the 70+ AI tools it comes with:
The best part is how easy it is to switch between different AI models - just one tap and you're using a different AI. Plus, everything syncs across your devices so you can start a conversation on your phone and continue it on your computer. Winner in this category | 7.5 Disciplined covers the basics of habit tracking well without overwhelming you with unnecessary features. It focuses on what matters most - helping you build and maintain good habits. The app keeps things simple, which many users actually prefer. Here's what works well:
But there are some limitations. The free version locks away detailed statistics, which frustrates some users. People also want features like grouping related habits together, adding notes to habits, and better streak tracking. While the core tracking works great, the feature set feels a bit basic compared to some alternatives. That's why we give features a 7.5. It's solid for basic habit tracking but missing some advanced capabilities that power users might want. |
| Performance Prod Apps's expert score for the 'Performance' aspect of each app. | 8.0 The app runs smoothly without lag or interruptions when chatting with multiple AI models. The search function works quickly and accurately, so you can easily find your conversations. We tested it on different devices and platforms, and it performed well everywhere. The chat responses are fast, even when switching between different AI models. The cross-device sync works reliably, so you can start a conversation on your phone and pick it up later on your computer. The integration with Gmail and LinkedIn works well without delays. We did notice some occasional loading times when processing complex requests or large documents, but overall the performance is consistent and reliable for everyday use. The best part is that basic features work offline, so you can access your conversations even without an internet connection. Winner in this category | 7.0 Disciplined's performance is generally solid, but there are concerning reports about lag and stability issues that prevent a higher rating. Performance seems to vary depending on your device and how you use the app. Here's what works well:
But there are performance concerns that impact the rating. Several users report that the latest version became "laggy" on their devices, with one user noting that the app made their phone slow and eventually stopped working. Some mention bugs that prevented them from getting value from the app, especially after paying for premium. These issues appearing in recent reviews suggest ongoing performance challenges that need attention. We give performance a 7.0 - generally good, but the reported lag issues and occasional bugs prevent a higher score. Users with older devices should be particularly cautious. |
| Design Prod Apps's expert score for the 'Design' aspect of each app. | 8.0 The app looks clean and modern. It's easy to find what you need without getting lost in menus. The chat interface is well-designed with clear differences between responses from different AI models. We liked how the app works the same way whether you're on Android, iOS, or desktop. It adapts nicely to different screen sizes. The dark and light theme options are a nice touch, and you can customize the interface to your liking. The mobile version works really well too - you can easily access your AI conversations on your phone without any issues. | 8.5 Disciplined's design is one of its best features. Users consistently praise the clean, intuitive interface. We love how it keeps things simple and focuses on what matters most. Here's what makes the design great:
Some users mention areas for improvement, especially around widget customization. One user wished the widget could be more transparent to better match their home screen. The "less is more" approach works well for a habit tracker, though some users might want more visual feedback or customization options. We give design an 8.5 - excellent for its clean, functional approach, with room for minor aesthetic improvements. Winner in this category |
| Value for Money Prod Apps's expert score for the 'Value for Money' aspect of each app. | 9.0 Merlin AI offers great value. You can use it for free without creating an account, and you get 102 queries per day across all the major AI models. This free access to ChatGPT, Grok AI, DeepSeek, Gemini, Claude, and Perplexity AI in one app saves you from needing multiple expensive subscriptions. The premium plan adds useful features like voice chat, advanced AI tools, and team collaboration. The pricing is reasonable, making it a good choice for students, professionals, and anyone who wants to boost their productivity. When we compared it to individual subscriptions for these AI services, Merlin AI saves you money while offering more convenience. You really can't find another tool that gives you this much value for so little cost. Winner in this category | 7.0 Disciplined's value is mixed - users have different opinions about whether the premium features are worth the cost. The pricing strategy and feature distribution significantly impact the overall value. Here's what's good about the value:
But several factors limit the value rating. Many users are frustrated that basic features like detailed statistics are locked behind the premium paywall. Some feel the free version is too limited, while others mention performance issues and bugs that reduce the perceived value. The fact that some users uninstall due to upgrade prompts suggests the freemium model could be better balanced. We give value for money a 7.0 - fair pricing for what's offered, but the free version limitations and some user-reported issues impact the overall value perception. |
| Ease of Use Prod Apps's expert score for the 'Ease of Use' aspect of each app. | 9.0 Merlin AI is one of the easiest AI assistants we've tried. You can start using it right away without any complicated setup. The free tier gives you 102 queries per day, which is plenty to test everything out. Installing it is simple, and it works great on both Android and iOS. Switching between AI models is super easy - just tap to change from ChatGPT to Grok AI to Claude, and so on. The integration with Gmail and LinkedIn works smoothly. You don't need to configure anything complicated. The free tier lets you explore all the features without committing to anything, which makes it easy to learn at your own pace. We give it a 9 out of 10 because it's really user-friendly, though some of the more advanced features might take a bit of time to figure out. Winner in this category | 8.0 Disciplined is really easy to use. Most users find it intuitive and straightforward. We can't think of a simpler habit tracker to get started with. The app's simplicity is its biggest strength when it comes to ease of use. Here's what makes it user-friendly:
But there are some usability issues that prevent a higher rating. Several users find the repeatability settings confusing, especially when setting up habits for quitting bad behaviors. Some also want features like adding notes to habits or grouping related habits together. While the basics are easy to use, some advanced features could use better guidance. That's why we give ease of use an 8.0. It's extremely user-friendly for basic operations, though some advanced features might take a little time to figure out. |
| Security & Privacy Prod Apps's expert score for the 'Security & Privacy' aspect of each app. | 7.0 For security and privacy, we give Merlin AI a 7 out of 10. The app uses standard encryption for your conversations and personal data, which is good. However, since it connects to multiple AI providers, your data might be shared with these third-party services. This is mentioned in their privacy policy, but it's something to be aware of. The app doesn't ask for unnecessary permissions, but remember that your conversations and any documents you upload are processed by external AI services. While the company is transparent about how they use data, we would have liked more control over what gets shared with which AI providers. They do a good job of being upfront about it, but some users might want more control over their data. | 7.5 Disciplined's approach to security and privacy seems standard for a habit tracking app, though we found limited specific information about their data practices during testing. Here's what we know:
But there are some concerns that prevent a higher rating. The app has privacy policy and terms of service on their website, but we couldn't find details about data encryption, third-party sharing, or specific security measures. The fact that it syncs data across devices raises questions about how secure the data transmission and storage are. We give security and privacy a 7.5 - adequate for basic use, but users concerned about data privacy should check the app's privacy policy for more specific details. Winner in this category |
| Conclusion A summary of our findings and final thoughts for each app. | Merlin AI stands out as an exceptional all-in-one AI assistant that successfully combines multiple AI models with practical tools. The generous free tier makes it accessible to everyone, while the premium features offer significant value for power users. For anyone looking to consolidate their AI tools into one powerful platform, Merlin AI delivers an impressive and well-rounded experience. | Disciplined is a solid choice if you want a simple, effective habit tracker. It doesn't try to be everything to everyone - it just does habit tracking really well. The clean design makes it easy to use, and the pricing is fair for what you get. The free version is limited, but the premium upgrade is worth it if you want better analytics and features. This app's strength is that it stays focused on helping you build better habits without overwhelming you with unnecessary complexity. For users who want unlimited free habits, Habitive is the best option. Those seeking elegant design might prefer HabitKit with its beautiful GitHub-style visualization. If you want gamification, Habitica offers unique RPG elements. However, if you prefer simplicity and focus without distractions, Disciplined provides exactly what you need. Quick SummaryBest for: People who want simple, effective habit tracking without distractions Not ideal for: Users who need advanced analytics or social features Value: Good free version, reasonable premium pricing |
| Our Recommendation | ||
